WALLA WALLA WSO, WA

Average of Minimum Temperature (Degrees Fahrenheit)

(458931)

File last updated on March 29, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1916-----z-----z-----z-----z-----z50.27 55.65 57.26 50.13 38.16 29.56n-----z50.29g
1917-----z-----z33.94n39.97 46.32 50.37 59.00 58.48 53.20 41.29 -----z-----z49.80e
1918-----z-----z-----z38.28a43.29 55.73 58.68 56.13 52.80 44.87 -----z-----z49.97e
1919-----z-----z36.26 40.63 45.19 49.33 58.97 58.35 48.07 38.19 -----z-----z46.88d
1920-----z-----z36.03 38.17 43.61 50.80 59.84 58.26 50.63 40.94 -----z-----z47.28d
1921-----z-----z37.42 38.63 45.32 55.77 56.87 58.26 46.50 42.29 -----z-----z47.63d
1922-----z-----z33.03 38.27 44.10 57.07 61.55 59.58 52.67 43.16 -----z-----z48.68d
1923-----z-----z34.81 40.37 46.81 51.63 59.81 59.35 51.03 40.87 -----z-----z48.08d
1924-----z-----z33.10 38.30 48.35 53.70 59.94 57.13a50.13 42.71 -----z-----z47.92d
1925-----z-----z36.06 42.37 48.42 54.90 61.55 57.74 51.10 39.65 -----z-----z48.97d
1926-----z-----z36.65 43.57 47.00 55.10 61.55 57.90 45.00 42.68 -----z-----z48.68d
1927-----z-----z34.13 36.83 43.19 54.43 58.81 58.71 50.34a44.45 -----z-----z47.61d
1928-----z-----z37.65 39.10 47.74 52.57 -----z58.19 50.73 42.61 -----z-----z46.94e
1929-----z-----z36.29 37.87 45.74 52.07 56.45 59.87 47.63 41.39 -----z-----z47.16d
1930-----z-----z36.74 44.57 46.68 50.30 59.97 59.74 51.63 39.42 -----z-----z48.63d
1931-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1932-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1933-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1934-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1935-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1936-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1937-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1938-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1939-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1940-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1941-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1942-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1943-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1944-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1945-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1946-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1947-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z
1948-----z-----z-----z-----z-----z56.07 -----z59.39 51.53 41.65 36.90 25.63a45.19f
194911.06 28.46 36.58 44.23 53.68 55.03 61.16 61.68 54.57 41.19 40.83 32.52 43.42
19509.81 28.14 37.06 40.47 47.32 55.57 62.26 62.58 54.37 45.94 37.20 35.77 43.04
195129.68 32.00 34.06 42.33 49.03 55.60 63.35 61.39 53.87 44.39 35.53 25.39 43.89
195225.10 33.62 37.55 43.90 51.06 54.43 62.52 61.55 56.13 48.65 30.40 33.33a44.85
195342.29 36.75 39.61 43.03 47.94 52.90 61.42 61.94 55.73 46.58 39.37 36.39 47.00
195429.03 36.14 33.65 42.50 50.10 52.33 60.16 58.90 52.97 42.45 42.67 30.39 44.27
195529.39 31.11 32.00 39.37 45.84 56.03 59.90 60.45 52.73 45.48 28.17 27.52 42.33
195628.26 21.90 37.26 44.50 51.26 53.37 64.58 60.74 53.70 44.19 33.30 32.29 43.78
195714.87 31.43 37.45 44.53 53.42 57.17 60.77 59.45 55.33 43.42 34.20 36.13 44.01
195834.48 40.82 35.81 42.77 54.55 58.90 65.03 65.84 53.40 43.90 36.77 32.65 47.08
195930.26 33.32 38.84 43.23 46.26 56.63 62.23 59.16 52.63 45.26 30.70 30.29 44.07
196021.00 32.48 37.06 43.87 47.87 55.03 65.97 59.42 53.50 45.87 37.53 27.45 43.92
196132.74 40.25 40.77 42.73 48.97 59.53 65.06 66.06 50.47 42.48 29.20 32.03 45.86
196227.16 32.32 35.23 44.70 47.16 54.33 61.52 59.58 53.77 45.94 39.63 34.77 44.68
196322.10 34.64 39.00 42.60 50.06 56.57 59.03 62.06 57.83 48.10 39.63 29.48 45.09
196435.42 33.86 36.32 40.57 47.61 55.33 60.45 57.87 51.47 43.10 35.87 26.03 43.66
196531.52 35.82 33.68 45.37 47.87 54.87 62.84 62.03 50.10 48.26 39.90 32.03 45.36
196633.29 34.21 38.16 43.17 49.13 54.20 60.06 61.13 57.53 44.32 39.10 36.48 45.90
196738.52 37.07 37.58 39.77 48.97 58.50 64.58 66.55 58.37 46.61 36.30 32.32 47.09
196832.16 37.34 41.13 40.80 49.74 56.27 63.71 59.97 54.63 43.23 37.30 26.77 45.25
196918.55 29.96 37.45 42.50 51.74 59.17 60.84 58.71 55.27 41.65 36.97 31.68 43.71
197029.55 36.25 37.48 39.23 49.87 59.40 64.16 62.39 49.77 42.74 35.50 31.48 44.82
197135.90 34.39 35.45 40.70 49.29 53.30 62.61 65.74 48.83 41.90 38.10 30.81 44.75
197227.90 31.24 40.52 38.80 50.61 57.03 61.45 62.68 50.37 42.84 36.47 24.03 43.66
197326.32 32.71 39.94 41.93 50.45 55.97 62.61 61.39 53.40 44.94 37.03 36.39 45.26
197426.52 37.00 38.58 43.13 47.84 57.73 60.97 61.71 53.10 43.13 39.13 34.90 45.31
197529.90 30.57 35.71 38.87 48.00 53.40 64.81 57.77 52.03 46.39 36.77 33.94 44.01
197632.84 33.76 34.35 40.63 47.16 51.27 60.84 58.26 55.13 42.48 37.27 29.65 43.64
197722.32 36.32 37.48 44.57 46.35 58.70 59.87 64.32 52.03 43.61 35.07 32.77 44.45
197830.03 36.11 40.42 43.10 48.10 56.73 61.39 60.10 52.87 42.29 29.07 25.84 43.84
197913.45 33.04 38.61 43.87 50.90 55.97 62.65 62.03 55.87 47.87 32.40 34.61 44.27
198022.45 31.90 37.71 45.50 50.29 52.87 61.32 57.16 53.90 43.42 38.10 34.32 44.08
198134.55 33.86 39.10 44.00 49.16 53.87 59.23 63.71 54.47 43.39 38.17 32.32 45.48
198228.81 33.46 37.65 39.63 48.03 59.07 61.03 62.35 52.23 43.32 32.87 32.61 44.26
198336.06 38.57 41.19 41.40 50.84 54.57 59.35 63.87 49.93 44.29 41.67 19.97 45.14
198429.84 34.90 41.16 42.17 47.06 54.03 61.71 62.03 50.97 41.52 37.03 24.42 43.90
198524.58 27.64 36.10 45.30 50.55 55.73 66.52 58.61 49.57 43.42 23.40 18.39 41.65
198630.58 34.11 42.61 42.43 50.45 60.17 58.84 65.29 51.83 44.52 38.43 29.10 45.70
198726.61 33.64 41.61 47.07 52.29 57.87 60.10 59.68 55.20 43.61 38.13 30.00 45.48
1988-----z-----z-----z-----z-----z-----z-----z58.87 -----z-----z-----z-----z58.87k
Period of Record Statistics
MEAN27.82 33.62 37.26 41.81 48.46 55.08 61.24 60.52 52.42 43.47 36.05 30.57 44.56
S.D.7.22 3.56 2.44 2.42 2.54 2.62 2.31 2.53 2.72 2.32 3.98 4.39 1.17
SKEW-0.73 -0.72 0.09 -0.11 0.07 -0.15 0.11 0.66 -0.20 0.10 -1.13 -0.85 0.16
MAX42.29 40.82 42.61 47.07 54.55 60.17 66.52 66.55 58.37 48.65 42.67 36.48 47.09
MIN9.81 21.90 32.00 36.83 43.19 49.33 55.65 56.13 45.00 38.16 23.40 18.39 41.65
YRS39 39 51 53 53 55 53 56 55 55 40 40 39